Ring signatures are cool tech, but it's important to point out ring signature plausible deniability promises only work _in the absence of outside (off chain) information_.

When coupled with outside information (Cooperation with exchanges and other large holders, timing attacks of IP addresses, etc). The plausible deniability you get from ring signatures can be much lower in practice

Edit: Here's a really good video with some of the core monero contributors on EAE attacks https://www.youtube.com/watch?v=iABIcsDJKyM